preparatory

預備的、準備性的、籌備的

The committee held a preparatory meeting before the formal negotiations began.

委員會在正式談判開始前召開了籌備會議。

預科的、升學預備的教育

She teaches history at a preparatory school for girls.

她在一所女子預備學校教歷史。

在…之前、為…做準備正式

He cleared his desk preparatory to leaving the company.

他在離職前把辦公桌整理乾淨。